Newegg had one msi p35 atx board for $49.99, but I don't know if they have any left. Otherwise, checkout some g31 boards by downloading the manual before ordering. Check the bios for voltage and memory adjustments.

If you need OCing help, check out the P35-DS3L OCing guide available on the forum here.Only glaring limitation I see is that it only has 2 slots for RAM. Then again, 4GB (2*2GB) is enough for an average user.